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1 Purpose

X02ALF returns the largest positive floating point number.

2 Specification

FUNCTION X02ALF (

)

REAL (KIND=nag_wp) X02ALF

3 Description

X02ALF returns the largest positive number in the model of floating point arithmetic described in the X02 Chapter Introduction. The returned value is equal to 1-b-p×bemax, where b is the arithmetic base (see X02BHF) and emax is the maximum exponent (see X02BLF) in the model.